baber/WOPTO huggingface dataset:
Patent GB-876168-A (GB)
Title: Improvements in or relating to heat radiators
IPC: F28D1/02
Filed: 1959-05-12
Abstract: 876,168. Air-heating radiators for spaceheating. MORITZ, G. May 12, 1959 [May 17, 1958; Nov. 10, 1958], No. 16191/59. Classes 64(2) and 64(3) The sections of a.radiator each comprise a vertical tube 1 for a heating medium (between bosses 2) and a plate fin 4 bearing ribs 5 and outermost ribs 6; the fin 4 widens towards the top of the section. As shown in Fig. 1 the widening is at one side of the tube 1 but it may be on both sides. The sections are of cast iron or made of stamped steel sheets or sheets of light alloy and connected by threaded sleeves. The fins 4 may be corrugated to give a wavy section or a zig-zag section, Fig. 5a. They may be formed to give the section indicated in Fig. 5c or divided as in Fig. 5d; the divisions may be parallel, louvrefashion. The ribs 5 may be corrugated, Fig. 6 (not shown) and there may be projections from the fins 4 or the ribs 5 or both to retard the air rising between the radiator sections. To prevent air escaping at the back of the radiator and possibly also at the front, the outermost ribs 6 of adjacent sections may touch one another or be joined by strips 10, Fig. 4, of metal or of synthetic resin. The strips 10 may be attached by clips 11 or by screws or hooks. There may be electric heaters in the tubes 1.
Patent GB-347511-A (GB)
Title: Friction clutch
IPC: F16D25/04
Filed: 1930-05-26
Abstract: 347,511. Friction clutches. SKODA WORKS, PLZEN, 37, Jungmannova, Prague, and GÍTZ, F., 4, Denisovo nabr., Pilsen, both in Czecho-Slovakia. May 26, 1930, No. 16228. [Class 80 (ii).] In a friction clutch of the type which is engaged by the centrifugal pressure of a liquid such as mercury, glycerine, &c., the liquid is carried in a vessel 8, 9 connected by arms 4 to rotate with the driving shaft 1, which does not penetrate the vessel. The wall 9 of the vessel is movable axially to engage the clutch plates 11 through adjustable pins 12 under the influence of the centrifugal pressure within, and for this purpose it is connected to the wall 8 by a rubber ring 7 upset as shown at 14 to press the plate 9 in one or other direction. Alternatively the plate 9 may be spring- pressed against the plate 8. The pins 12 may be adjusted by unscrewing pins 18 on which they are mounted, and inserting shims between the pins 12 and ring 10. In a similar manner the mounting screws 13 may be used for adjusting the axial position of the chamber to vary the travel of the wall 9, and clamping screws may be provided for locking. The central part of the vessel is wide to provide storage space for liquid. In a slow-speed clutch for a motor with eight or more poles the rarefaction of air in the vessel consequent on engagement, assists release of the clutch, but in a high-speed clutch undesirable rarefaction is prevented by a central ventilating opening or valve. The driven member 3 may as shown be a belt pulley or gear-wheel, but an aligned driven shaft having a hub connected to the part 3 may be used.
Patent GB-612651-A (GB)
Title: Improvements in or relating to the supply conductors of electron discharge tubes
IPC: H03F1/08
Filed: 1946-05-28
Abstract: 612,651. Thermionic valves. PHILIPS LAMPS, Ltd. May 28, 1946, No. 16233. Convention date, Sept. 14, 1939. [Class 39 (i)] [Also in Group XL (c)] In a high-frequency amplifier input damping is reduced by making the self-inductance of the cathode supply conductors small, viz., less than 4 x 10<-8> henries, and the mutual induction between the supply conductors for the cathode and control grid more than 2 x 10<-8> henries. 'The control grid lead may be led close to the cathode conductor; or a thin plate 6 forms part of the cathode lead and the grid lead 7 is led near to the plate; or a cylinder forms part of the cathode conductor and the grid lead passes through it. The subjectmatter is identical with that of Specification 546,231.
Patent GB-714748-A (GB)
Title: Improvements in or relating to electric recording and reproducing apparatus
Inventor: SHORT KONRAD
IPC: G11B15/44
Filed: 1952-06-27
Abstract: 714,748. Driving sound film, tape or wire. TRUVOX, Ltd. May 28, 1953 [June 27, 1952], No. 16282/52. Class 40 (2). In a recording and reproducing apparatus for a record medium such as magnetic wire or tape in which electric motors of the eddycurrent or shaded pole type are used to drive each reel to take up the medium, braking is provided by supplying a direct current to the motor which is employed for driving in the opposite direction to that which the medium is being moved at the time of braking. The figure shows a general arrangement in which a take-up motor 32, a capstan motor 23 and a rewind motor 37 are connected to an alternating current supply through push-button switches 38, 39, 40. The operation of any one of these switches, or of " stop " button 49, automatically releases whichever of the others may be at the time in the operative position. The switch 38 serves to connect motor 23 for a record/reproduce operation and at the same time to connect motor 32 through a resistance 63 to effect a weak energisation of the motor 32 for winding the medium on to reel 13. Operation of switch 39 effects a fast-forward winding of the tape by coupling the motor 32 direct to the alternating current supply, during which operation the medium is not in engagement with the capstan 16. Similarly, switch 40, couples motor 37 for a fast-rewind operation. A switch 43 is also provided which when operated does not release the other switches but couples a direct current source to whichever motor 32 or 37 is not at the time connected to the alternating current source, and thereby produces a braking effect. The brake switch 43 and "stop" button 49 are coupled together by a spring-loaded cam-operated detent 22 so that the "stop " button cannot be operated unless the brake switch 43 is being pressed.
Patent GB-1063788-A (GB)
Title: Improvements in barium sulfate preparations
IPC: A61K49/04
Filed: 1964-04-20
Abstract: An X-ray contrast medium for oral administration is produced by mixing finely divided pharmaceutically acceptable barium sulphate and a liquid medium in a pressure-tight container containing a gas under pressure, and expelling the mixture therefrom by action of the said pressurised gas the invention also comprises a barium sulphate preparation in the form of the said mixture in conjunction with a pressurised gas in a pressure-tight container.  Liquid media may be milk or water, preferably with a flavouring agent; suitable gases are carbon dioxide, nitrous oxide, and nitrogen.  When aqueous media and a water-soluble gas are used, the composition is produced as an effervescing suspension.  A suitable container is the conventional aerosol-type can with a valve through which the composition is dispensed.
Patent GB-719423-A (GB)
Title: Improvements in fluid heat exchange apparatus
IPC: F28D21/00
Filed: 1950-10-26
Abstract: 719,423. Combustion-air heaters. BABCOCK & WILCOX, Ltd. Oct. 26,1950 [Oct. 29, 1949], No. 16302/52. Divided out of 719,378. Class 64(1) . In a method of protecting a heatexchanger, e.g. a combustion air heater, from condensation from heating gases, a first part of a stream of heating gas is passed through a first section of the heatexchanger after cooling in a further heatexchanger and a second and separated part of the heating gas stream is passed through a second section of the heat-exchanger adjacent the cold fluid inlet without passing through the said further heatexchanger. In the form shown, an economizer 91 and two air heaters 75 are associated with a water-tube boiler 76. By a suitable setting of dampers 96, 97, Fig. 1, controlling gas flow to a space 94 above the air heaters 75, and damper 92 in an air heater by-pass duct 88, heating gases from the boiler may be directed through boiler gas outlet 83 to flow in series over economizer 91 and air heaters 75 to gas outlet duct 93, or they may be directed in streams flowing in parallel, one of which flows through gas outlet duct 83, over economizer 91 and through by-pass duct 88 to gas. outlet duct 93, and the other of which flows through a longitudinally extending lower gas outlet 85 to space 94 above the air heaters and then through the tubes or other elements cf the air heaters to the gas outlet 93. As seen from Fig. 2, the air heaters 75 are adjacent one another, each air heater having an inlet 109 for cold air and an outlet 112 for air heated by flowing over the air heater tubes. In order to avoid corrosion of the tubes by excessive cooling of the heating gas when the air heater is operating at relatively low temperatures, a flow of the heating gas from the boiler is caused to pass at all times through further lower gas outlets 85a, 85b, Fig. 2, and through rows 117 of air heating tubes lying adjacent the cold air inlet 109 of each air heater, this flow taking place irrespective of the flow of the remainder of the boiler gases over the main part of the air heater and the economizer as directed by the setting of dampers 92, 96, 97. U.S.A. Specification 2,418,815 is referred to.
Patent GB-594174-A (GB)
Title: Improvements in or relating to shuttle devices for sewing machines
IPC: D05B57/26
Filed: 1945-06-27
Abstract: 594,174. Sewing-machines. BRITISH UNITED SHOE MACHINERY CO., Ltd. (United Shoe Machinery Corporation). June 27, 1945, No. 16348. [Class 112] Shuttles. - The threadcase 8 of a shuttle 6, particularly for a shoesewing machine, has a hollow stud 10 containing a spring-pressed plunger 14 which bears on the thread leaving the thread-case through the bore of the plunger in order to tension it, as described in Specification 347,269; in order to avoid clogging of the spring 16 with wax and lint stripped from the thread by the plunger, the latter is formed with a stem that extends through the spring to telescope with a plunger 26 which engages a thread-case locking slide 20 as described in Specification 347,269.
Patent GB-106054-A (GB)
Title: Improvements in or relating to Electrical Contacts, and to the Mode of and Means for Mounting or Supporting same.
Inventor: CRAWFORD ARTHUR
IPC: H01H11/06
Filed: 1916-05-15
Abstract: 106,054. Crawford, A., and Preston, W., (tradings as Sanders & Co., W.). May 15, 1916. Contacts.-Relates to the mounting of an electric contact consisting of a U-shaped member having dual limbs and a transverse part whereby the contact is secured to a supporting-bar by a hand clip encircling the bar and tightened by a single screw. According to the invention, the transverse part of the contact a is clamped between the band clip c and the bar b in such a manner that the two limbs of the contact form abutments on each side of the clip to prevent relative movement between the contact and the clip longitudinally of the bar. The clip may also retain between itself and the bar a lug, tongue, or the like h upon a terminal g, or one end of the band clip may be extended beyond the clamping- screw d to carry the terminal. The bar may, however, serve as a conductor, in which case, a terminal may be secured to the bar independently of the contact clip. The bar may be supported at its ends in such a manner that it can be adjusted laterally of its length. According to Provisional Specification 15033/16, when the bar is a conductor, the terminal may be provided upon a clip similar to that used for attaching the contact to the bar.
Patent GB-984521-A (GB)
Title: Superpolyesters
IPC: H01B3/42
Filed: 1961-05-05
Abstract: Film- or fibre-forming linear polyesters containing 50 mol per cent of p-phenylene isophthalate units interspersed with phenylene terephthalate units, have an intrinsic viscosity of at least 0.5 and contain n chlorine atom in each phenolic nucleus, n being 0, 1 or 2. The polymers are prepared by reaction of a dihydric phenol with aromatic dicarboxylic halides or by ester-interchange in a solvent which is benzophenone, m-terphenyl, chlorinated or brominated biphenyls, chlorinated or brominated diphenyl oxides, chlorinated or brominated naphthalene (see Specification 984,524).  All reactants may be reacted simultaneously or the diphenol may be reacted first with one acid reactant and then with the other.  Suitable dihydric phenols are hydroquinone; monochlorohydroquinone; 2,3-, 2,5- or 2,6-dichlorohydroquinone. Examples (1) describes the one-stage method of making polymers from hydroquinone, isophthaloyl chloride and terephthaloyl chloride, fibres and transparent films made from them and gives some of their physical properties; (2) is similar, using the two-stage method; (3) illustrates the use of phenol as a chain stopper; (4) of monophenyl isophthaloyl chloride; (5) of a monobenzoate of hydroquinone; and (6) of excess hydroquinone; (7) illustrates an ester-interchange reaction using p-phenylene diacetate, iso- and terephthalic acids; (8) uses monochlorohydroquinone; (9) uses 2,5-dichloroterephthaloyl chloride; (10) uses 5-chloroisophthaloyl chloride; and (11) uses monochlorohydroquinone together with 2,5-dichloroterephthaloyl chloride and 5-chloroisophthaloyl chloride; (12) illustrates various methods of insulating a wire using poly-p-phenylene isophthalate terephthalate containing 85 mol. per cent isophthalate and 15 mol. per cent terephthalate units.  The polymers may be used for coating compositions, forming fibres or films or tubes, as dielectrics, as electrical insulation in various forms, for laminating or as adhesives.  They may include conventional additives.  Specifications 984,161, 984,522 and 984,523 also are referred to.
Patent GB-456571-A (GB)
Title: Process of softening unpurified water
IPC: C02F5/02
Filed: 1936-06-12
Abstract: Water containing appreciable gypsum hardness and little or no chlorides of alkaline earth metals is softened by adding barium carbonate to convert the gypsum hardness to calcium hardness, separating the solids, e.g. by sedimentation and subsequent filtration, treating the water with a base-exchanger having exchangeable hydrogen ions, and degasifying to remove free carbon dioxide.  Where the water treated is poor in carbon dioxide, free carbon dioxide may be added prior to, during or after the addition of the barium carbonate.  Where the water contains small amounts of the chlorides of alkaline earth metals, the small amount of hydrochloric acid in the softened water may be neutralized by adding sodium hydroxide solution.
Patent GB-120607-A (GB)
Title: Improvements in and relating to Helmets or Head Shields.
Inventor: BRODIE JOHN LEOPOLD
IPC: A42B3/22
Filed: 1917-11-09
Abstract: 120,607. Brodie, J. L. Nov. 9, 1917. Helmets.-A metal helmet of the kind described in Specification 11803/15 is provided on the outside with a visor of bullet-proof steel. The lower front part of the rim b of the helmet a therein described is cut away, and a visor c of the shape shown is pivoted by means of bifurcated rivets, nuts, bolts, &c. o to the sides of the helmet. Slats or holes d are provided in the front of the visor. The lower edge of the visor on each side is turned inwardly as shown at f, or hollow metal projections are screwed to the inside, to protect the cheek bones. Rubber buffers i and a loose lining g, as described in the above-mentioned Specification, are employed, but the lining is cut away at the top as shown at h, and its place taken by a net. A strap k is secured by a rivet &c. l to the centre of the crown of the helmet and passes through metal loops n secured to the sides by the rivets &c. o. This strap is provided with metal loops m at its two ends to which the chin strap is attached, so that, by securing the latter, the strap k is pulled on to the top of the head to keep the helmet in place. An anchor-shaped liner e, as described in Specification 120,606, also is secured by the rivets &c. o, l, and assists in keeping the helmet in place on the head, and in increasing the distance between the visor and the face of the wearer.
Patent GB-178033-A (GB)
Title: Improvements in or relating to weight-supporting platforms
IPC: G01G23/00
Filed: 1921-06-15
Abstract: 178,033. Wade, H., (Mills, M. B.). June 15, 1921. Platform machines; spring balances.-Relates to the platforms of weighing-scales and consists in the provision of means for securing the uniform depression of the platform under the weight of the load. As shown, the base comprises a frame 6, Figs. 1, 2, and 3, having crossrails 7 supporting rollers 8, the rollers being connected to the rails and the bars 10 carrying the weighing-platform 19 by springs 9, Fig. 4, and springs 12, Fig. 3, respectively. Arms 13 are rigidly secured at the ends of the rollers. The arms at one end of the rollers are connected by a spring 15 to a weigh-beam or dial, and at the other end of the rollers are coupled by a spring 14. Lateral movement of the arms is prevented by springs 17 fitted between pairs of lugs 16 on the arms and secured at one end to the frame.
Patent GB-1268567-A (GB)
Title: Improvements in a process for the production of tubular articles
Inventor: KEMSEY-BOURNE KENNETH
IPC: B29C53/60
Filed: 1969-03-29
Abstract: 1,268,567. Plastics tubular members. ENGLISH CALICO Ltd. 29 March, 1969, No. 16592/69. Heading F2P. A process for the production of a tubular article comprises helically winding a strip 4 of a plastics material round a mandrel 1 such that adjacent edge portions of the strip overlap, the plastics strip having wholly embedded therein a length of reinforcing insert 4b which has a thickness, in a direction at right angles to the plane of the strip, of at least one fifth of the width of the plastics strip, and welding the overlapping edge portions of the strip. As shown, the reinforcing insert, which may consist of a spirally wound metal tube or rope, is introduced into the die 6 from which the strip 4 is extruded, the strip being led on to the mandrel 1 which is supported on rollers 2 one at least of which is driven. The overlapping edges of the strip are welded together by a profiled roller 7 which does not distort the insert 4b. When taken off the mandrel 1 the formed tube has a smooth inner surface, the mandrel 1 preferably being coated initially with a layer of plastics. In a modification, Fig. 6, (not shown), one or more further plastics strips are wound to provide a tube with two, or more, layers.
Patent GB-641581-A (GB)
Title: Improvements in or relating to electric discharge tubes
IPC: H01J1/28
Filed: 1948-06-21
Abstract: 641,581. Cathodes. PHILIPS ELECTRICAL, Ltd. June 21, 1948, No. 16626. Convention date, Nov. 26, 1947. [Class 39 (i)] A discharge tube cathode comprises a supply of alkaline - earth compounds enclosed in a porous sintered refractory metal, e.g. tungsten, molybdenum, tantalum, hafnium or niobium. It may be operated at 1200‹ C. with a continuous loading of 1 amp./cm.<SP>2</SP> or impulses of 450 amps./cm.<SP>2</SP> and is suitable for use in projection cathode-ray tubes, magnetrons, &c. A thin-walled cap 1 of sintered tungsten, filled with bariumstrontium carbonate 2, is mounted in a molybdenum body 4. A heater 6 is housed behind the partition 5. Alternatively the surface cathode may be cylindrical, Fig. 3 (not shown).
Patent GB-111295-A (GB)
Title: Improvements in Devices for Connecting the Mandrels of Tube-rollingt Mills to their Holders.
Inventor: INSHAW JOHN GEORGE
IPC: B21B25/02
Filed: 1917-07-12
Abstract: 111,295. Inshaw, J. G., and Inshaw, G. R. Nov. 14, 1916, [Convention date]. Rolling-mandrels.-The mandrel G of a tuberolling mill is connected to its holder H by a bayonet-joint. The mandrel is provided with a neck and flattened end g adapted to engage grooves h and then, after slight rotation, to be pressed by the spring h<6> into engagement with shallow recesses h<2> between projections h<3>, h<4>. To release the mandrel it must be forced in against the action of the spring, rotated in the reverse direction to pass the projection h<3> and then withdrawn. The end g is not larger than the acting part of the mandrel so that, if it becomes detached and is drawn through the rolls, no damage is done. Specification 111,280 is referred to.
Patent GB-1302443-A (GB)
IPC: G03B27/52
Filed: 1970-04-08
Abstract: 1302443 Photo-copying apparatus CANON K K 8 April 1970 [8 April 1969(2)] 16722/70 Headings G2A and G2H Photo-copying apparatus comprises a stationary stand (not shown) for an original 1'; a light source 8'; a first mirror 2' included at an angle of (90 degrees-#) to the stand and reflecting a normal beam of light from an original; a lens 3' receiving such a beam; a second mirror 4' after the lens, the mirror 4' being normal to the stand and reflecting light to an exposure station defined by a slit 5'; means to drive the mirrors 2', 4' and the lens 3' synchronously in order to scan an original 1' on the stand, the mirror 2' and lens 3' moving at a speed V parallel to the stand, while the mirror 4' moves in the arrangement shown, at a speed V/(2 sin #) in a direction inclined at (90 degrees-#) to the stand; and means for moving a photo-sensitive member 6' past the slit 5'. As shown, the member 6' is moved at a speed V, but this may be varied to give an enlarged or reduced image. Preferably the angle 6 is 30 degrees. The light source 8' may move with the mirror 2'. In another arrangement, Fig. 2 (not shown), the second mirror (4") moves parallel to the stand at a speed of V/2, and is longer than the second mirror 4'. Both mirror and lens arrangements are also described as forming parts of electro-photographic copying apparatus, Figs. 3, 7 (not shown). The mirrors and lens are driven in their scanning movements, by belts (J, K), which are connected to synchronizing drums (M, M') coaxial with a photo-sensitive drum (1) and selectively coupled thereto by means of an electromagnetic clutch. The return movement is brought about by means of belts (Q, O) and a return device (L). For the apparatus of Fig.3, #=30 degrees, so only one synchronizing drum is provided. Two drums (M, M') are provided in the apparatus of Fig. 7, their diameters being the ratio 2:1.
Patent GB-118517-A (GB)
Title: Improvements in and connected with Clocks.
Inventor: BURNETT GEORGE
IPC: G04C21/30
Filed: 1917-11-15
Abstract: 118,517. Burnett, G. Nov. 15, 1917 Time-alarms.-To give time-signals at schools &c., a clock is provided with two rings B, C fittÚd with electric contacts H at any desired points. The hands of the clock also carry contacts which rub over the rings. The electric connexions are such that, when the hands are in the prearranged relative positions, a bell is rung.
Patent GB-350225-A (GB)
Title: Improvements in the construction of floors, walls and the like
IPC: E04F15/14
Filed: 1930-05-31
Abstract: 350,225. Mosaic floor and wall coverings. PICKFORD, E. W., 76, Victoria Street, Manchester. May 31, 1930, No. 16861. [Class 20 (iv).] The division strips B of terrazzo and like floors and walls are held by pairs of lugs a on sheet-metal plates A which are laid upon or embedded in the concrete foundation. The lugs may extend diagonally or diametrically, or a single pair of lugs may be formed centrally on a plate. The strips B may be made of metal, vulcanite, or wood, narrow at the bottom and with the sides recessed. In a modification, the lugs engage in a groove in the lower edge of the strip B.